Good idea! As you wrap the sheet around your hands and kneel down into the vent, you begin cleaning out the debris with more efficiency. The passageway slowly starts to clear up, revealing a dark tunnel leading away from your current location. You could either continue cleaning or attempt to climb through the vent now that there's enough space for you.

As you look around, you remember that this house has a specific layout in your mind. The vents all lead to different rooms and areas. You could either guess which direction the vent leads or risk crawling through it without knowing where it goes.